To facilitate ongoing research and development for larger quantum computers, the collaboration period at the RIKEN Center has been extended until March 2029.

The new quantum computer features a scalable 3D interconnection structure with 4-qubit cell units, allowing for efficient scaling without the need for complex redesigns.

Fujitsu and RIKEN are collaborating to develop a groundbreaking 1,000-qubit quantum computer, set to be installed by 2026, showcasing their commitment to advancing quantum technology.

This new system will be housed at the RIKEN RQC-FUJITSU Collaboration Center and builds on a previous 64-qubit model launched in late 2023, supported by Japan's Ministry of Education, Culture, Sports, Science and Technology (MEXT).

The collaboration aims to enhance the usability of quantum computing by integrating quantum and classical computing technologies for hybrid algorithms, which will accelerate practical applications.

Key advancements include a quadrupled implementation density within the dilution refrigerator, enabling the new system to operate alongside the existing 64-qubit model.

Fujitsu and RIKEN have also developed an innovative cooling method that allows all 256 qubits to function within the same cooling unit as the previous system, addressing a significant challenge in scaling quantum computers.

The anticipated 256-qubit computer is expected to attract interest from industries such as pharmaceuticals and finance, which require advanced simulations and optimization solutions.

This new quantum system is designed to improve applications in molecular analysis and error correction research, with availability expected for global companies and research institutions by mid-2025.

This initiative has been in development since 2018 under researcher Yasunobu Nakamura, reflecting Japan's strategic focus on superconducting qubits.

The design of the 256-qubit system allows for expansion without complete redesign, utilizing four-qubit units to increase the qubit count efficiently.

As Japan's largest digital services provider, Fujitsu aims to integrate quantum computing into its broader digital transformation strategy, leveraging its substantial revenue to support these advancements.